Necromancer Skullcap 1st Rank
 

The apprentice skullcap quest asks for 4 sarnak brains and you get the apprentice skullcap. This quest currently is also refunding the 4 brains in addition to giving out the apprentice skullcap 1st rank.

Coupled with the call of bones illusion sending your faction from scowls to indifferent with brood of kotiz, I only needed to kill a few forsaken iksar to hit amiable and begin the quest. Once I did the turn in I was able to exploit my way to max reputation with brood of kotiz in about 4 minutes by repeatedly turning in the brains over and over. This process should require the killing of around 1100 mobs instead.

2nd rank quest also refunds the tapestry and 1st rank cap in addition to giving the apprentice skullcap 2nd rank reward.

Seems like a large number of quests return the hand-in and give out the reward as well. Is this some more general bug?